Stanisław Tym
— KO Instructor
Jolanta Lothe
— Young Girl
Wanda Stanisławska-Lothe
— Ms. Mamoń
Jerzy Dobrowolski
— Instructor's Friend
Andrzej Dobosz
— Philosopher
Feridun Erol
— Seaman
Jan Himilsbach
— Sidorowski
Jerzy Karaszkiewicz
— Angler
Zdzisław Maklakiewicz
— Engineer Mamoń
Maciej Michalak
— Passenger
Ryszard Pietruski
— Captain
Wojciech Pokora
— Passenger
Roman Suszko
— Passenger
Waclaw Antczak
— Commission Member
Janusz Bezamson
— Passenger
Eugeniusz Gajewski
— Commission Member
Michalina Gesicka
— Passenger
Irena Izykowska
— Sidorowska
Janusz Kłosiński
— Józio
Leszek Kowalewski
— Poet
Wawrzyniec Trybala-Olszewski
— Singer
Józef Piekarski
— Passenger
A. Sobczyk
— Judge
Roman Sokolowski
— Quiz Participant
Piotr Pietrzyk
— Quiz Participant
Zofia Czerwińska
— Passenger (uncredited)
Janusz Głowacki
— Passenger (uncredited)
Tomasz Lengren
— Passenger (uncredited)
Wojciech Roszyk
— Wojtuś / Piotruś (uncredited)